Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post UTME Past Questions Agent

Chemistry Past Questions

Clear Selections
Change Subject Post a Question Check Syllabus Study My Bookmarks Past Questions Videos Watch Video Lessons Download App

WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post UTME Past Questions Agent
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
2146

A gas was evolved when a sample of gastric juice reacted with sodium trioxocarbonate (IV) . The gas evolved was

  • A. NH3
  • B. SO2
  • C. HCI
  • D. CO2
View Answer & Discuss (2) WAEC 2001
2147

It can be concluded that gastric juice

  • A. contains enzymes
  • B. is acidic
  • C. is a mixture
  • D. has pH value of 7
View Answer & Discuss (7) WAEC 2001
2148

What does ∆H represent in the following equation ? Cl(g) + e- → CI- (g); ∆H = - 363 kJ mol-1

  • A. lonization energy
  • B. Electron affinity
  • C. Dissociation energy
  • D. Heat of atomization
View Answer & Discuss WAEC 2001
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Your School's Whatsapp Group - Join Us now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
2149

Consider the following equation: Ag+ (aq) + CI-(aq) → Ag+CI- (s) ; ∆H = - 65.7 kJmol-1. From the equation, it can be deduced that

  • A. direct combination is involved and the reaction is endothermic
  • B. a solid is formed and heat is evolved
  • C. activation energy is high and a catalyst is required
  • D. the reaction is endothermic and occurs at high temperature
View Answer & Discuss WAEC 2001
2150

A reaction is represented by the equation below. A2(g) + B2(g)  → 2AB(g); ∆H = +X kJmol-1 Which of the following statements about the system is correct?

  • A. The reaction goes to completion at equilibrium
  • B. The forward reaction is exothermic
  • C. At equilibrium increase in temperature favours the reverse reaction
  • D. Pressure has no effect on the equilibrium mixture
View Answer & Discuss (1) WAEC 2001
Start a Free Practice Test
 
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post UTME Past Questions Agent
Your School's Whatsapp Group - Join Us now